Mold



March 31. 1925. 1,531,415

. H SAID MOLD Filed NOV. 22, 1922 Howard aid 1 INVENTOR W -Y ATTORNEY 'lil prises un outer shell 1, :1 molrl bottom 2 the!) e25; Milli-l5 oriirso sires 'rseir oriie,

HOV'ARD SAID, OF CQHNING, NEVJ YORK, ASSIGNOR TO COBNING GLASS WORKS. 075' i CORNING,NEW YGBK, A CORPORATION OF NEW YORK.

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Application filed November 22, 1922. Serial No. 602,610.

lie it lilififiill that l. Plownnn Sun. A citizen the l'nitwl States. residing zitf orning, in the wxnmty ot' Steuhen and State of New lorlc. have-invented new llllfl useful lmprmruieuts in Holds. of which the followllljJj 1S 1: Slfli'lilt'ili'lfll].

'lhls invention relates to improvements in ugohis. and ii purtivulnrly relates to imn'oveuwnts in molds llSitl for forming presseil glassware. .ll(ll for instance as lmkon: lislie's :uul olher thii'k-walleil articles. 'lh v prune ohjeet of my invention is to provunu nzohl o! improved (OllSll'llCtlOl'l wherein provision is maile for the circulation of u r oliug lluirl under pressure upon the ex- {error surface of the mold bottom so as to ouzhle the mold to he worked ,more fretlanges 6 and 7, respectively: the upper P llunge 6 being formed with an inclined seat 8 for the outer inclined surface 9 of the of the flange fl, helow the inclined portion 8 thereof, is formed substantially vertical. This portion of the flange 6 of the shell is adapted to encircle the upper exterior p"- tion of the bottom 2.

As the diameter of the top of the mold bottom is approximately similar to the (linineter of the interior of the flange 6 of the shell, and the contour of the exterior of the mold hottom is approximately parallel to the inner wall of the shell, when the molrl bottom is positioned within the shell, its exterior Will he spaced from. the'shell, and its bottom willbe spaced from the open hottom in the shell.

integrally formed on the outer surface of the mold l'io'itom 2, areraglial fins 11, having vertical outer edges 12.?rnrl horizontal lower edges 13\ the fins 11 heing of such form that they W'll occupy onl the lower portion of the space hetween the shell and bottom of lhe mold. The purpose of the fins 11 is to serve us means for supporting the hottoin 2 qurnil in eontinuous operation than is the mm with the usual livpes of press molds. :uwoinpanymg (lrmvmgs, wherein ll the preferred embodiment of ertiesl longitudinal section r pressing glassware (onm-rsoruzug to my invention, taken "itily on the line l1, of Fig.

flange 5 of lhe ing, while the inner surface flif iliv l m! Sh in h in the shell, 11ml, therefore the outer corners- ;mso; they M n ill? p g 18 of each of the fins 11 is notched as at 14 for l *f7i'( 5.\{(i, and

l 2. is u horizontal section taken upu'orunuilely on the line 22 of Fig. L lookon u! the under side of the mold bottom.

Referring to the drawings. the mold comeugagement with an annular seat 15 formed in the lower flange 7 of the shell.

The construction is such that an annular ehnmher 16 is formed between the shell and the mold bottom. the lower portion of such chomher being pierced by the fins 11 while the upper portion ofthe chamber is open mounted in the shell, ,1 rin,g 3 which is adapted to he seated upon the shell and ootas t g nk-cooling fluid entering the f 3 N T- All these p chamber From the bottom to readily circunre so tlesigznerl that they will cooperate, l t

when assembled, to form pressed articles from molten glass which has been deposited in l'he moltl bottom. The ring 3, and plungr! 4 may he of the form now in use, and llu-se elements run he used in my rlevice without nlleraliou. The ring 3 is formed with u. depending flange 5 Whose surface is finished to fii" smoothly upon the top of the upper etlge of the bottom 2, while its in-. terror diameter is finished to receive the plunger.

'l he bottom of the shell 1 is open, and the body portion of the shell is of greater (llameter than the diameter of the mold bottom The top and bottom edges of the shell extend inwardly to provide upper and lower When the mold is being used in the production of glass articles, it is adapted to he place-cl over an opening '17 in the table 18 of the glass pressing apparatus, the size of theopeu bottom ml the shell corresponding :1 proxinuitely with the size of the opening 1 so that fluid under pressure cau'be easily introduced to the chamber 16 ofthe inoltl, between the mold bottom and shel.

To permit circulation of the cooling fluid, which is by preference air that has been forced into the chamber 16, the shell, near its upper edge, has formed therein a plurality of openings 19, which may be of any desirecl size, and may be of the number re quired to permit the fluid to pass through the ohambor at a velocity nooossary to keep the mold bottom at \\'t)ll(llt; temperature. it being under tood that when the mold is bein used in continuous production. the hot gla s tends to overheat the bottom 2, and thus prevent the mold from being worked \'er fast unless ample provision is made to cool the mold bottom. as horoinabove described.

Having thus desoribod my invention. what; l olaim i,

l. A mold of the oliararter specified comprising a shell having upper and lower flanges. and a mold-bottom having radial tins extending therefrom, the upper edge of the mold-bottom engaging: the upper flange of the shell and the radial tins of the mold bottom engaging the lower flange of the shell whereby the mold bottom is spaced from the shell.

2. A mold for the purpose specified eonnisting of a hollow sholL open at the bottom. and having upper and lower inturnetl flanges. a mold oottom positioned within the shell, the upper edge of the mold bottom en ;1'a; 1'in; the upper tlango of tho shell. and radial tins xtending from the mold bottom and engaging the lower flange of the shell.

3. A mold of the charaotor desoribed oon sisting of a hollow shell. open at the bottom. and having upper and lower inturned flanges, a mold bottom positioned within the shell and spaced therefrom. the upper edge of tho mold bottom engaging the upper flange of the shell. radial tins extending from the mold bottom and engaging the lower flange ot tho shell. whereby a ohamher for a eoolin; tluid is formed in the space between tho shell and bottom. formed in tho upper portion of the shell to permit tho cooling" fluid in tho chamber to pass outwardly throughthe shell.

l. The combination of a mold. a mold bottom formed with cooling ribs on the under surfaee thoroot'- cooling air against said ribs.

In testimony whereof I hereunto sign my name this 21st, day of November 1922.

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